* Created PluginSecretMigrationService to be able to migrate from the secrets table from the database to the secret plugin. Added migration which takes all the secrets at the sql store and stores it in the plugin. Then deletes all the secrets from the sql
* Added secretsKVStoreSQL.GetAll() method to return all the secrets at the sql table
* Renaming kvstore_test.go as sql_test.go, adding GetAll test case. Fixing decryption of keys
* Extend kvstore to retrieve all items
* Fix comment
* Fix tests
* Change test order
* Move test outside to avoid order conditions
* Update Items to GetAll function and return a map
* Add explanation of map result
* Add description comment
Co-authored-by: Tania B <yalyna.ts@gmail.com>
* Chore: Exclude integration tests from running on test-backend step
* Remove -v from go test command
* Add check to skip integration tests before each integration test
* Try to restart pipeline
* Retrying to make pipeline run
* add key/value store service
* don't export kvStoreSQL, consumers should interact with KVStore & NamespacedKVStore
* add del method, avoid ErrNotFound (#38627)
* switch value column to medium text
Co-authored-by: Alexander Emelin <frvzmb@gmail.com>
